812ee5f63052d86a8300080a0f376215c1c45eebfee921063b64abf454b89bb6

Analysis

max time kernel
153s
max time network
159s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
25/04/2024, 21:49

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General

Target

2024-04-25_acde350c6ce4357bb89df696f54ef126_cryptolocker.exe
Size

40KB
MD5

acde350c6ce4357bb89df696f54ef126
SHA1

875784d4c388eb4e36e73a4d0f0d33f74a3edcd9
SHA256

812ee5f63052d86a8300080a0f376215c1c45eebfee921063b64abf454b89bb6
SHA512

d272e3dc9668befbf1f2eca2e1476f4ae1d1cf75b6a584e4dcf9f4e7429ed56e17478193731748b81bddc4a157b6d68cb5d45cfab441f9dc44e0f830a2875aef
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6DyE9xgywg:bIDOw9a0Dwo3P1ojvUSD79yywg

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023260-12.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	2024-04-25_acde350c6ce4357bb89df696f54ef126_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1896	lossy.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4968 wrote to memory of 1896	4968	2024-04-25_acde350c6ce4357bb89df696f54ef126_cryptolocker.exe	90
PID 4968 wrote to memory of 1896	4968	2024-04-25_acde350c6ce4357bb89df696f54ef126_cryptolocker.exe	90
PID 4968 wrote to memory of 1896	4968	2024-04-25_acde350c6ce4357bb89df696f54ef126_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-04-25_acde350c6ce4357bb89df696f54ef126_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-25_acde350c6ce4357bb89df696f54ef126_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4968
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:1896

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4088 --field-trial-handle=3088,i,14310325015283915034,7660943942870463106,262144 --variations-seed-version /prefetch:8
1⤵
PID:1176

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\lossy.exe

Filesize
41KB

MD5
66411eee3a3b6d11b7960def10848b52

SHA1
e2528208017b3e4f2f31d0b65be0426a83d4335b

SHA256
d0cf43f8ef49e1ce25aa98decea9ab88e01a534c942b7faa98158da05c0c9c04

SHA512
301b2b357de38dc5ff0e21f65165c744055a31aeff094645f998c15ce6df1533de8fd279086be9c5451bda082bd7fd9bb6d2ea7fe8919b0f84edc9c849b003dc

Download Submit
memory/1896-18-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/1896-17-0x0000000002060000-0x0000000002066000-memory.dmp

Filesize
24KB

Download
memory/4968-0-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/4968-1-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/4968-2-0x0000000002220000-0x0000000002226000-memory.dmp

Filesize
24KB

Download